Mitsubishi FR-A800

708
APPENDIX
Appendix 1 For customers replacing the
conventional model with this
inverter
Appendix 1.1 Replacement of the FR-A700 series
Differences and compatibility with the FR-A700 series
Item FR-A700 FR-A800
Control method
V/F control
Advanced magnetic flux vector control
Real sensorless vector control
Vector control (with plug-in option )
PM sensorless vector control (IPM motor)
V/F control
Advanced magnetic flux vector control
Real sensorless vector control
Vector control (with plug-in option )
PM sensorless vector control (IPM motor/SPM
motor)
Added functions

USB host function
Safety stop function
etc.
Brake transistor
(brake resistor usable)
Built in for the FR-A720-0.4K to 22K
Built in for the FR-A740-0.4K to 22K
Built in for the FR-A820-00046(0.4K) to
01250(22K)
Built in for the FR-A840-00023(0.4K) to
03160(55K)
Maximum
output frequency
V/F control
400 Hz 590 Hz
Advanced
magnetic flux
vector control
120 Hz 400 Hz
Real sensorless
vector control
120 Hz 400 Hz
vector control
120 Hz 400 Hz
PM sensorless
vector control
300 Hz 400 Hz
PID control
Turn the X14 signal ON to enable PID control.
The X14 signal does not need to be assigned. (PID
control is available by the Pr.128 setting.)
The PID pre-charge function and dancer control
are added.
Automatic restart after
instantaneous power
failure
Turn the CS signal ON to enable restart.
CS signal assignment not required. (Restart is
enabled with the Pr.57 setting only.)
Number of motor poles
V/F control switching
The V/F switching signal (X18) is valid when Pr.81
= "12 to 20 (2 to 10 poles)".
Pr.81 = "12 (12 poles)"
X18 is valid regardless of the Pr.81 setting. (The
Pr.81 settings "14 to 20" are not available.)
PTC thermistor input
Input from the terminal AU (The function of the
terminal AU is switched by a switch.)
Input from the terminal 2. (The function of the
terminal 2 is switched by the Pr.561 setting.)
USB connector
B connector Mini B connector
Control circuit terminal
block
Removable terminal block (screw type) Removable terminal block (spring clamp type)
Terminal response level
The FR-A800's I/O terminals have better response level than the FR-A700's terminals. By setting Pr.289
Inverter output terminal filter and Pr.699 Input terminal filter, the terminal response level can be
compatible with that of FR-A700. Set to approximately 5 to 8 ms and adjust the setting according to the
system.
PU
FR-DU07 (4-digit LED)
FR-PU07
FR-DU08 (5-digit LED)
FR-PU07 (Some functions, such as parameter
copy, are unavailable.)
FR-DU07 is not supported.
Plug-in option
Dedicated plug-in options (not interchangeable)
Communication option
Connected to the connector 3 Connected to the connector 1
Installation size
For standard models, installation size is compatible for all capacities. (Replacement between the same
capacities does not require new mounting holes.)
For separated converter types, installation size is not compatible. (New mounting holes are required.)